Blame it on seed and fertilizer companies. When they started handing out free ball caps to farmers, they caught on and broad brimmed hats were tossed in the backs of the closets and forgotten. Then the skin cancer rate among farmers skyrocketed. Short sleeved shirts are a big problem, too. I'm as guilty as anyone. I've had basil and squamous cell growths removed several times. No melanomas so far, thank God.
Do you weld? How often have you picked up a stinger for a quick spot weld without putting on something to protect your arms or your throat area? A couple seconds with a welder will do as much damage as weeks of sunshine.
